Malicious PDF — malware analysis report

Static analysis result for SHA-256 522d6fd7a7042077…

MALICIOUS

PDF

68.4 KB Created: 2021-02-24 15:09:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: dc6bd3b33280320b24fcd24a6147f97b SHA-1: 253b82061eb385316bca669fdfc82d1e3e198ce5 SHA-256: 522d6fd7a704207774877f8cefb704069245b19cbffa40b50f3e6ffab96a52c1
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://druttle.ru/wix?keyword=special+education+paraeducator+interview+questions+and+answers PDF link annotation
    • http://gebuhrenfrei-mein.com/wokivusimamegobu7588.pdfIn PDF document text
    • http://porn77.design/nafuruxajidoxnwvx.pdfIn PDF document text
    • http://airet.space/dead_zombie_sniper_frontier_2018_hackbtzab.pdfIn PDF document text
    • https://mutixuvuv.weebly.com/uploads/1/3/4/6/134665255/fozewafoxisuko.pdfIn PDF document text
    • http://collegegraduatecentraldating.com/comparatives_and_superlatives_text_exercisesnqagh.pdfIn PDF document text
    • http://hamlikjorettoop.ru/450090288060q8y7.pdfIn PDF document text
    • http://myluckybet.xyz/organic_chemistry_questions_answerslear7.pdfIn PDF document text
    • http://file-id.ru/duvemedufuravapavikifuneqkrvb.pdfIn PDF document text
    • http://pedalini.club/relentless_tim_grover_summary9hjqa.pdfIn PDF document text
    • https://lujumibuxoze.weebly.com/uploads/1/3/5/3/135350241/525be5d91.pdfIn PDF document text
    • http://netlysy.online/sarazidua8kvm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pabudixobo.epizy.com/geometry_1.4_measuring_angles_worksheet_answers.pdfIn PDF document text
    • http://pakoxerevigere.epizy.com/marriage_contract_form.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/betashares_aaa_fact_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/5347686413.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/tijep.pdfIn PDF document text
    • http://kitukogoxav.epizy.com/fegipasifi.pdfIn PDF document text
    • http://dizoduji.rf.gd/69696311902.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/tufodibis.pdfIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/85566497772.pdfIn PDF document text
    • https://s3.amazonaws.com/tosevud/kapatokokefekikogo.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d116.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD116 5448 bytes
SHA-256: 8869549efc853a1de6f3a8e9d9356fc03948484ff0a354a9915269631597c506
font_01_sfnt_off0000e3b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B9 9420 bytes
SHA-256: 8efe5c8aa5f722d67757d897b887f24e1fd45f724986b24b9726d2c1ece592bf

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